Senior Housing Properties Trust (NYSE: SNH) today announced that the
underwriters of its public offering have exercised, in full, their
option to purchase an additional 1,500,000 common shares. The sale of
the additional common shares and the sale of the original public
offering of 10,000,000 common shares are expected to close on Monday,
January 28, 2013.

This press release is neither an offer to sell nor a solicitation of an
offer to buy shares, nor shall there be any sale of these securities in
any state or jurisdiction in which the offer, solicitation or sale would
be unlawful prior to registration or qualification under the securities
laws of such state or jurisdiction. The prospectus supplement relating
to this offering and related prospectus have been filed with the
Securities and Exchange Commission (SEC) and copies can be obtained by
contacting the offices of: Jefferies & Company, Inc., 520 Madison
Avenue, 12th floor, New York, NY 10022, telephone: (877) 547-6340;
Citigroup, c/o Broadridge Financial Solutions, 1155 Long Island Avenue,
Edgewood, NY 11717, telephone: (800) 831-9146 or Wells Fargo Securities,
Attention: Equity Syndicate Department, 375 Park Avenue, New York, New
York, 10152, by email at cmclientsupport@wellsfargo.com, telephone:
(800) 326-5897.

WARNING CONCERNING FORWARD LOOKING STATEMENTS

THIS PRESS RELEASE INCLUDES FORWARD LOOKING STATEMENTS WITHIN THE
MEANING OF THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995 AND
OTHER SECURITIES LAWS. THESE FORWARD LOOKING STATEMENTS ARE BASED UPON
SNH'S PRESENT BELIEFS AND EXPECTATIONS, BUT THESE FORWARD LOOKING
STATEMENTS ARE NOT GUARANTEED. FOR EXAMPLE:

THIS PRESS RELEASE STATES THAT THE SALE OF THE 1,500,000 ADDITIONAL
COMMON SHARES AND THE SALE OF THE ORIGINAL PUBLIC OFFERING OF
10,000,000 COMMON SHARES ARE EXPECTED TO CLOSE ON MONDAY, JANUARY 28,
2013. IN FACT, THE CLOSINGS OF THESE SALES ARE SUBJECT TO VARIOUS
CONDITIONS CUSTOMARY IN TRANSACTIONS OF THIS TYPE. IF THESE CONDITIONS
ARE NOT SATISFIED, THESE SALES MAY NOT CLOSE.

FOR THESE REASONS, AMONG OTHERS, INVESTORS ARE CAUTIONED NOT TO PLACE
UNDUE RELIANCE UPON FORWARD LOOKING STATEMENTS.

A Maryland Real Estate Investment Trust with transferable shares of
beneficial interest listed on the New York Stock Exchange.No
shareholder, Trustee or officer is personally liable for any act or
obligation of the Trust.